masker



. UNITED STATES J. H. 'MASKERQ or NEWARK. New` :innen` MACHINE Fort TURNING HAT-BLOCKS; i f y Specification oflietters Patent No. 26,691, dated January-3, il i.; i

` length, size, and shape of blocks, from the pattern block from `which they are turned or formed, by the same machine as will, if

. desired, produce an exact duplicate of t-he pattern.

In the drawings, Figure 1 is a perspective View of the machine. Fig. 2 is atop view ofthe part of the machine in which the blocks are held while being shaped.` Fig. 3 is the contrivance. by which the blocks can be made longer than the pattern. y

The same letters and figures refer to the same partsin each of the .figures `in the drawings.

A is the frame of the machine.

' B, a, e, is the frame in which the block to be turned and the pattern block are held. rIhis frame is of metal and is formed by the sides c and e, being connected by the bars b and c. These bars are permanently fixed to the side a, but are loose in the side, e. A thread is cut on those ends of the bars (b and c) whchpass through the side e. A nut f being placed on each side of e, holds it in the desired place. By this means the frame B can be adapted to blocks of various lengths.

`The main shaft C passes through and revolves in the sides a and `e in the frame B, its place being the middle of the length of the frame. The side cis held to the same pla-ce on the main shaft, while the shaft revolves, by the hub of the cogwheel g on one sideof a and by` a ring collar h on the main shaft on the other side, so that while the shaft C travels endwise, as it does in operating, the frame B is carried along with it. The object of the endwise traveling being that of bringing the surface of the rough block c', in its progress, in contact with the cutter wheel j.

The shaft C through its bearings on the top of the frame `and the wheel n, every revolutionfmovesfit\ other end being` is caused to travel endwise` A by a screw cut thatfyend `which passes through the` side e`l of the frame? To the frame Ais attach y. aleverawhic p has a recess with. a thread corresponding with the screw ont).` `This leverislpressed 6 upon C by the smalliweightjk. so that when the shaft C is made .to revolvebythe` beltj forward one thfreadfof,thefscrew.` 1 i At each endl of thesidei @ofthe framef 6 is a lathemandrel d, madeyfast on theoutl` side of the frame `to a cogwheel .0".`;`1. 1Be-R tween o and the jcog wheel g an intermed e" wheel r is placed, fandfasz the..wheel``gyis1l made stationaryontheniain shaft "C tl revolving ofthe shafthcauses theblocks p and p both to turninthesame :directi by" the means of the intermediate wheels,`

In the ends fof the. side efof the fifa y and in `exact l`ine"withz` y enters i of mandrelscl, acenter pinjs splaced, holds the blocks. z' and "zo"atonedend,` he

held b the `.dogsfor chucks y in the mandre s d. T ese` `center` ins :are kept in place by` a screw andhand w ieel. The cutter wheel J is driven bythewheel u on the shaft fu, `and thefshaftifv is beltedi to the main `shaft in `the jfactoryfrom the.` fast and loose pulleyfw and :c oril the shaft/Ly` l 1 gl Over the middle of the circumferenceof,` .p the pattern block p is placed a1 small: wheel y y running on the end of a stemt` whichpasses up through a socket piece iz. This stemgwis lifted orlowered by the hand wheel and screw l and secured initsplace bythe screw and hand wheel2. f y I The socket is aflixed. toa` slide Siwhich works in the block "4, said block; being fais-1 i tened to the post"5. `On the side; of thefpost` 1i 5 a block with a `Slotthrough itis held `fast l y x by the thumb screw: 6i; Onfthe `to ofilthis block, at one end, is alpin `7, stan lngyback of a pin 8, which is bfastftothe slidel. i The n object of the slot in the block 9is1to allow/"W` the relative positions" ofthe pins land" 83to` be varied. The pin `7 beingl stationary. and the pin 8 fastto the slidej, when thexhole 10 in the lever 11 is "putfonthepin'," and the pin 8 through the slot in thelever 11, the slide 3 is `moved by the motionofthe lever. 1i y i The lever .1l hasoneend soattached.to` .1 the shaft C as to be madetomovelwith the shaft while itis travelingendwise, andlthus g the slide is brought;` slightly `forwardto` `lio;

ward the side a of the frame B, and with the slide goes the socket .e and the wheel stem t. Y

- The wheel y rests on the block p, and the block is held to the wheel by the weight 12, which is hung on the frame B, at the opposite end to the wheel and pattern block; and as the frame B is loose in its bearings on the shaft C, to allow the shaft to rotate, the pattern block p is kept up close to the wheel y. Its surface, however irregular, is thus brought in contact with the wheel y, giving the frame B an oscillating motion. This motion, as the cutter J is stationary and works on the under side of the rough block z', gives to the rough block z' the exact shape of the pattern block p.

By having the wheel y on the upper side of the pattern block p and the cutter on the under side of the rough block z', the object of varying the size of the block, while retaining the shape, is attained. While the frame B is on a level the blocks will be the same size, but if the stem t be lowered the new block will be larger, because held farther from the cutter J, or if the wheel stem t be lifted it makes the new block smaller by lowering it on to the cutter J.

If it is desired to retain the relative shape of the pattern with the exception of enlarging or diminishing either end of the block, the object can be attained by throwing the shaft C out of level by means of the set screws 13 under the bearing in the frame A.

As in using this machine itis intended to take old as well as new blocks for patterns, the contrivance in Fig. 3 is provided for that end. If the wheel y was totravel from end to end on an old block of which exact duplicates or any size longer was required, it would leave a piece atreach end of the rough block unfinished, but by means of the lever 11 and the slide 3 the wheel y is made to advance slightly in the same direction in which the pattern block'is traveling, and thus is prevented from having the pattern pass from under it before the desired length of the new block is completed. The variation is regulated by shifting the fulcrum pin 7 nearer or farther from the slide pin 8 by means of the thumb screw 6 and the slotted block 9.

I am aware of various patents for turning irregular forms. I do not therefore lay any claim thereto.

What I claim and desire to secure is- The oscillating frame B, and the devices for altering the shape of the block from that of the pattern, constructed combined and arranged substantially as herein above set forth. Y

J. H. MASKER. Witnesses:

W. M. GooDING, J oHN G. DEMAREST. 

